Calvergy

IT Director, CTO

Calvergy

full-time

Posted on:

Location Type: Hybrid

Location: Aachen • Germany

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Job Level

Lead

Tech Stack

CloudDjangoPythonReactTypeScript

About the role

  • Overall technical and entrepreneurial responsibility
  • Co-shape the company vision, strategy and business model as an equal member of the founding team
  • Define and implement Calvergy’s overall technical strategy
  • Build a scalable, maintainable and future-proof platform architecture
  • Technical decision-making responsibility towards investors, partners and customers
  • Product and platform development
  • End-to-end responsibility for the software architecture (backend, frontend, DevOps, data/ML)
  • Architecture and scaling of our backend systems (e.g., Python, FastAPI/Django, data pipelines)
  • Tight integration of simulation, AI/optimization models and product logic
  • Ensure code quality, performance, security and technical excellence
  • Close collaboration with users to translate real-world problems into marketable products
  • Build, lead and inspire a high-performing tech team
  • Recruiting, mentoring and developing engineers and data talent
  • Define development processes, engineering culture, tooling and quality standards
  • Act as the interface between engineering, product, sales and external partners
  • Hands-on mentality (especially in the early stage)
  • Active contribution to critical components in the backend, frontend and cloud infrastructure
  • Set up DevOps structures (CI/CD, cloud, monitoring)

Requirements

  • Several years of experience as a CTO, Tech Lead, Lead Engineer or Senior Full-Stack Developer — or comparable entrepreneurial experience
  • Strong expertise in system and software architecture (ideally Python + modern cloud stack)
  • Experience with frontend technologies (e.g., React, TypeScript)
  • Solid understanding of scalable platforms, APIs, data architectures and distributed systems
  • Initial experience building and leading teams
  • Entrepreneurial mindset, strong sense of ownership and high intrinsic motivation
  • Willingness to take responsibility — technically, strategically and personally
  • Bonus: experience with AI/ML, optimization, simulation or energy systems
Benefits
  • Short decision-making paths, high ownership and true start-up pace
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonFastAPIDjangoReactTypeScriptDevOpsCI/CDdata pipelinesAIML
Soft Skills
entrepreneurial mindsetownershipintrinsic motivationresponsibilityteam leadershipmentoringcollaborationcommunicationinspirationproblem-solving